Imagine that an uncharged pith ball is brought into the electrostatic field of a charged rod. The side of the pith ball closest
2 answers:
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Answer:
C. A quantity with magnitude and a direction.
Explanation:
A vector can be defined as a quantity with magnitude and direction. Some examples of vector quantities are velocity, position, displacement, force, torque, acceleration.
For example, given the following data;
Time, t = 18.5secs
Final velocity = 78m/s
Initial velocity = 0
Substituting into the equation;
Acceleration, a = 4.22m/s²
Therefore, the acceleration of the object is 4.22m/s² due North.
In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.
This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.
Hence, if we subtract the initial velocity from the final velocity and divide that by the time, we can calculate an object’s acceleration.
Mathematically, acceleration is given by the equation;
Where,
a is acceleration measured in
v and u is final and initial velocity respectively, measured in
t is time measured in seconds.
Answer:
The average acceleration is
Explanation:
<u>Uniform Acceleration </u>
When an object varies its velocity at the same rate, the acceleration is constant.
The relation between the initial and final speeds is:
Where:
vf = Final speed
vo = Initial speed
a = Constant acceleration
t = Elapsed time
The acceleration can be calculated by solving for a:
The Indy 500 race car increases its speed from vo=4 m/s to vf=36 m/s in t=4 s. Thus, the average acceleration is:
The average acceleration is
Answer:it’s B.
Because it’s said in the fhoto
